MySQL Upgrade Gone Wrong: A Cautionary Tale for Database Administrators

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A software engineer documented an experience where a seemingly routine MySQL database upgrade turned out to have unexpected and unsafe consequences. The incident highlights how standard upgrade procedures can carry hidden risks that are not immediately obvious. The blog post, shared on Hacker News, details the technical pitfalls encountered during what was assumed to be a safe migration. The account serves as a warning to database administrators about the importance of thorough testing and validation before and after upgrades.

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